For homeowners in Mokena, IL, a reliable heating and cooling system isn’t a luxury—it’s a year-round necessity. From our humid, sticky summers to our frigid, harsh winters, your HVAC system is the engine of your home’s comfort and safety. When that system fails, or if it’s not running efficiently, you need a local, professional partner you can trust without question. Potocki Heating & Air Conditioning is proud to be Mokena’s trusted, expert HVAC contractor.
We are a full-service, licensed, and insured company dedicated to providing our Mokena neighbors with honest diagnostics, transparent pricing, and high-quality, lasting solutions. Whether you need an emergency furnace repair, a routine seasonal check-up, or a full system assessment, our team is ready to help. Call us today at 815-693-5579 for prompt, professional service.

Your Full-Service Mokena HVAC Partner
Our commitment to Mokena homeowners is to be the only call you need to make for your total home comfort. We’ve built our reputation on a foundation of trust, technical expertise, and accountability. We don’t just “swap parts”; we diagnose the root cause of problems to ensure we’re providing a long-term solution, not a temporary patch. We are your one-stop-shop for every season.
Comprehensive Heating & Cooling Services in Mokena
Our certified technicians are trained to handle any HVAC challenge, from the oldest systems to the newest high-efficiency technology. We provide a full spectrum of services to our Mokena clients, ensuring your home is always safe and comfortable.
Licensed HVAC Contractors
Hiring a contractor is a matter of trust and safety. As fully licensed HVAC contractors in Mokena, we provide the ultimate peace of mind. Our credentials are your proof of our expertise, our accountability, and our commitment to protecting your home with full insurance and code-compliant work.
Residential HVAC Repair
Your HVAC system is an interconnected network. Our residential HVAC repair service takes a “whole-home” approach. We diagnose issues with your heating, cooling, and ventilation to find the true source of your comfort problem, ensuring a complete and lasting repair.
Furnace Repair
A broken furnace in a Mokena winter is an emergency. Our Mokena furnace repair team offers fast, 24/7 emergency service to get your heat restored quickly. We provide accurate diagnostics and upfront, flat-rate pricing to get your family warm and safe again.
Furnace Inspection
Are you buying a new home, or just worried about an aging system? A professional furnace inspection is a deep diagnostic service. We check for safety (like CO leaks), assess the system’s health, and provide a detailed report so you can make an informed decision.
Furnace Clean and Check
The single best way to prevent breakdowns and save on energy bills is with proactive maintenance. Our annual furnace clean and check service is a comprehensive tune-up. We clean, inspect, and test all critical components to ensure your furnace is safe, efficient, and reliable all winter long.
For any heating or cooling need in Mokena, from an urgent repair to a routine check-up, trust the local pros. Call Potocki Heating & Air Conditioning today at 815-693-5579 or contact us online to schedule your service.
Frequently Asked Questions for Mokena Homeowners
Why is it important to hire a *local* HVAC contractor in Mokena?
Hiring a local Mokena-area contractor means faster response times, especially for emergencies. It also means accountability. As your neighbors, our reputation in the community is our most valuable asset. We’re committed to building long-term, trusting relationships, not just making a single sale.
What is the difference between a furnace inspection and a clean and check?
This is a great question. A “clean and check” is proactive maintenance for a system you assume is healthy—its goal is to keep it safe and efficient. A “furnace inspection” is diagnostic investigation—its goal is to find the cause of a problem or to certify the health of a system, often for a real estate transaction.
How often should I get my furnace serviced in Illinois?
Due to our harsh, long winters, we strongly recommend a professional “clean and check” service once per year, typically in the fall before you need to rely on it daily. This preventative maintenance is the #1 way to prevent breakdowns, improve efficiency, and ensure safety, as recommended by all manufacturers and the U.S. Department of Energy.